/*
 * Created on 19 Jun 2006
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package org.gudy.azureus2.pluginsimpl.local.utils.security;

import java.util.Arrays;

import org.gudy.azureus2.core3.util.HashWrapper;
import org.gudy.azureus2.plugins.utils.security.SEPublicKey;

public class SEPublicKeyImpl implements SEPublicKey {
    public static SEPublicKey decode(byte[] encoded) {
        int type = encoded[0] & 0xff;

        byte[] x = new byte[encoded.length - 1];

        System.arraycopy(encoded, 1, x, 0, x.length);

        return (new SEPublicKeyImpl(type, x));
    }

    private int type;
    private byte[] encoded;
    private int hashcode;

    protected SEPublicKeyImpl(int _type, byte[] _encoded) {
        type = _type;
        encoded = _encoded;
        hashcode = new HashWrapper(encoded).hashCode();
    }

    public int getType() {
        return (type);
    }

    public byte[] encodePublicKey() {
        byte[] res = new byte[encoded.length + 1];

        res[0] = (byte) type;

        System.arraycopy(encoded, 0, res, 1, encoded.length);

        return (res);
    }

    public byte[] encodeRawPublicKey() {
        byte[] res = new byte[encoded.length];

        System.arraycopy(encoded, 0, res, 0, encoded.length);

        return (res);
    }

    public boolean equals(Object other) {
        if (other instanceof SEPublicKeyImpl) {

            return (Arrays.equals(encoded, ((SEPublicKeyImpl) other).encoded));

        } else {

            return (false);
        }
    }

    public int hashCode() {
        return (hashcode);
    }
}
